One very promising direction is with carbon nanotubes and IBM has just reached a major milestone. They have created a new computer chip based on carbon nanotube technology that has more than 10,000 transistors.

Regular photovoltaic cells can only capture a certain spectrum of light, but a new type of solar cell developed by MIT researchers can now capture energy from the near-infrared region of the light spectrum.

One of the main advantages of such a system will be the early detection of diseases. Diseases could be diagnosed well before symptoms start to show up. As you already know, early detection is very important when it comes to diseases such as cancer. And the use of a single technique to survey the entire body will also simplify diagnosis to a great extent.

The treepods will work by utilizing an eco-friendly, alkaline resin which reacts with the air around it and strips the air of carbon dioxide. The clean air will float away happily. The treepods will be made entirely of recycled plastic from drink bottles.